The Indian Navy is the maritime branch of the Indian Armed Forces. The President of India is the Supreme Commander of the Indian Navy. The Chief of Naval Staff, a four-star admiral, commands the navy. As a blue-water navy, it operates significantly in the Persian Gulf Region, the Horn of Africa, the Strait of Malacca, and routinely conducts anti-piracy operations and partners with other navies in the region. It also conducts routine two to three month-long deployments in the South and East China seas as well as in the western Mediterranean sea simultaneously.
Super low frequency (SLF) is the ITU designation for electromagnetic waves in the frequency range between 30 hertz and 300 hertz. They have corresponding wavelengths of 10,000 to 1,000 kilometers. This frequency range includes the frequencies of AC power grids. Another conflicting designation which includes this frequency range is Extremely Low Frequency (ELF), which in some contexts refers to all frequencies up to 300 hertz.
Communication with submarines is a field within military communications that presents technical challenges and requires specialized technology. Because radio waves do not travel well through good electrical conductors like salt water, submerged submarines are cut off from radio communication with their command authorities at ordinary radio frequencies. Submarines can surface and raise an antenna above the sea level, or float a tethered buoy carrying an antenna, then use ordinary radio transmissions; however, this makes them vulnerable to detection by anti-submarine warfare forces.
The Strategic Forces Command (SFC), sometimes called Strategic Nuclear Command, forms part of India's Nuclear Command Authority (NCA). It is responsible for the management and administration of the country's tactical and strategic nuclear weapons stockpile. It was created on 4 January 2003 by the Vajpayee Government. Air Marshal Teja Mohan Asthana became its first commander-in-chief.
INS Kadamba or Naval Base Karwar or Project Seabird is an Indian Navy base located near Karwar in Karnataka. The first phase of construction of the base, code-named Project Seabird, was completed in 2005 and the base was commissioned on 31 May 2005. Development of Phase II commenced in 2011. INS Kadamba is currently the third largest Indian naval base, and is expected to become the largest naval base in the eastern hemisphere after completion of expansion Phase IIB. The construction of Naval Base covers an area of 11,169 acres in Phase I.
The Arihant-class is a class of Indian nuclear ballistic missile submarines under construction for the Indian Navy. They were developed under the ₹900 billion (US$11 billion) Advanced Technology Vessel (ATV) project to design and build nuclear-powered submarines. These vessels are classified as 'strategic strike nuclear submarines' by India.
In radio communication, a ground dipole, also referred to as an earth dipole antenna, transmission line antenna, and in technical literature as a horizontal electric dipole (HED), is a huge, specialized type of radio antenna that radiates extremely low frequency (ELF) electromagnetic waves. It is the only type of transmitting antenna that can radiate practical amounts of power in the frequency range of 3 Hz to 3 kHz, commonly called ELF waves. A ground dipole consists of two ground electrodes buried in the earth, separated by tens to hundreds of kilometers, linked by overhead transmission lines to a power plant transmitter located between them. Alternating current electricity flows in a giant loop between the electrodes through the ground, radiating ELF waves, so the ground is part of the antenna. To be most effective, ground dipoles must be located over certain types of underground rock formations. The idea was proposed by U.S. Dept. of Defense physicist Nicholas Christofilos in 1959.
INS Rajali, is an Indian naval air station located near Arakkonam, Ranipet district, Tamil Nadu in southern India. It operates under the Southern Naval Command of the Indian Navy, and has the longest military runway in Asia.
Project Sanguine was a US Navy project proposed in 1968 for communication with submerged submarines using extremely low frequency (ELF) radio waves. The initially proposed system, hardened to survive a nuclear attack, would have required a giant antenna covering two-fifths of the state of Wisconsin. The proposed approach was never implemented because of protests and potential environmental impact. A smaller, less hardened system called Project ELF consisting of two linked ELF transmitters located at Clam Lake, Wisconsin 46°05′05.6″N90°55′03.7″W and Republic, Michigan 46°20′10.1″N87°53′04.6″W was built beginning in 1982 and operated from 1989 until 2004. The system transmitted at a frequency of 76 Hz. At ELF frequencies, the bandwidth of the transmission was very small, so the system could only send short-coded text messages at a very low data rate. These signals were used to summon specific vessels to the surface to receive longer operational orders by ordinary radio or satellite communication.
INS Arihant, designated S2 Strategic Strike Nuclear Submarine, is the lead ship of India's Arihant class of nuclear-powered ballistic missile submarines. The 6,000 tonne vessel was built under the Advanced Technology Vessel (ATV) project at the Ship Building Centre in the port city of Visakhapatnam.
INS Garuda, is an Indian naval air station located in Kochi, in the state of Kerala. Commissioned on 11 May 1953, it is the oldest operating air station of the Indian Navy.
INS Hansa, is an Indian naval air station located near Dabolim in Goa, India. It is India's biggest naval airbase. The military air base has a civil enclave, that operates as Dabolim Airport.
INS Dega, is a naval air station of the Indian Navy. It is located in Visakhapatnam, Andhra Pradesh on the east coast of India.
INS Parundu is an Indian naval air station located near Uchipuli in the Ramanathapuram of the state of Tamil Nadu. It operates under the Eastern Naval Command of the Indian Navy. The air station will be opened up for civilian flights under Phase 2 of the Regional Connectivity Scheme (RCS) of the Government of India also known as UDAN and the Airports Authority of India (AAI) has started preparatory work at the airstrip. It is sandwiched between Rameswaram National Highway Road and Railway track which leads towards Rameswaram.
INS Varsha is a new naval base being developed under Project Varsha for the Indian Navy. This base will be the home of the navy's new fleet of nuclear submarines and ships. It was planned to be located within a radius of approximately 200 kilometres from Visakhapatnam, the headquarters of the navy's Eastern Naval Command. Previous news reports suggested that Gangavaram had been the initial site for the new base. The base is now being developed at Rambilli, which is 50 km from Visakhapatnam.
INS Arighaat is an upgraded variant of the Arihant-class submarine. It is the second nuclear-powered ballistic missile submarine made by India under the Advanced Technology Vessel (ATV) project to build nuclear submarines at the Ship Building Centre in Visakhapatnam. It has the code name S3.
INS Satavahana is the premier Submarine Training Base of the Indian Navy and is located at Visakhapatnam, Andhra Pradesh. Training is carried out by the Submarine School (SMS) and the Escape Training School (ETS) and the School of Advanced Undersea Warfare (SAUW).
INS Sardar Patel is a Forward Operating Base (FOB) of the Indian Navy in Porbandar, Gujarat and the Headquarters of the Naval Officer-in-Charge. It provides the logistic support to the Indian Navy units deployed in the Northern Arabian Sea, including along the International Maritime Boundary Line with Pakistan.
Flag Officer Commanding Tamil Nadu & Puducherry Naval Area (FOTNA) is a senior appointment in the Indian Navy. One of the five Area Commanders of the Indian Navy, the FOTNA is a two star admiral holding the rank of Rear Admiral. The FOTNA is responsible for the operations and administration of all units and establishments in the state of Tamil Nadu and the union territory of Puducherry. The Current FOTNA is Rear Admiral Ravi Kumar Dhingra, VSM, who assumed office on 25 April 2023.
